133042243 has 8 divisors (see below), whose sum is σ = 135915408. Its totient is φ = 130182624.

The previous prime is 133042219. The next prime is 133042267. The reversal of 133042243 is 342240331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133042219) and next prime (133042267).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133042243 - 2⁵ = 133042211 is a prime.

It is a super-4 number, since 4×133042243⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133042543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17880 + ... + 24202.

It is an arithmetic number, because the mean of its divisors is an integer number (16989426).

Almost surely, 2^133042243 is an apocalyptic number.

133042243 is a deficient number, since it is larger than the sum of its proper divisors (2873165).

133042243 is an equidigital number, since it uses as much as digits as its factorization.

133042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 133042243 is about 11534.3939155900. The cubic root of 133042243 is about 510.5009086030.

Adding to 133042243 its reverse (342240331), we get a palindrome (475282574).

The spelling of 133042243 in words is "one hundred thirty-three million, forty-two thousand, two hundred forty-three".